tract

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tract

1
1. Anatomy a system of organs, glands, or other tissues that has a particular function
2. a bundle of nerve fibres having the same function, origin, and termination

tract

2
RC Church an anthem in some Masses

Tract

 

in the central nervous system, any one of several groups of closely placed nerve fibers having a common morphological structure and common functions. Tracts are divided by function into associative tracts, which unite various sections of the cerebral cortex in the same hemisphere; commisural tracts, which connect both hemispheres and ensure their cooperative activity; and projection tracts, which unite the cerebral cortex with lower brain formations and, through them, with the periphery.

References in periodicals archive ?
The origins of multiple squamous cell carcinomas in the aerodigestive tract.
Moreover, the visibility of fish bones varies with respect to different fish species, its anatomic location of impaction and orientation within the upper aerodigestive tract.
It is the absence of overshadowing by other bones as happens in fish bone impaction in upper aerodigestive tract.
The genotype at the C677T MTHFR variant also plays a role in the risk of alcohol-related upper aerodigestive tract cancers.
In short, The cancer of the upper aerodigestive tract is a heterogeneous neoplasm which affects some anatomical regions that by their location and lymphatic dissemination, has a very different treatment (10).
In the only literature on HIV infection and tonsil disease, 45 patients with upper aerodigestive tract tuberculosis in Thailand were reviewed; (25) 26 had HIV tests and, of these, 5% were HIV-positive.
The risk for alcohol-related colorectal and breast cancer is smaller than that for the upper aerodigestive tract cancer.
Chemoradiation has become an accepted standard of care for locally advanced malignant tumors of the upper aerodigestive tract.
However, salivary IgA anti-htTG antibodies may offer promise in studies on differences between the aerodigestive tract and the gut in the gluten-dependent mucosal immune response.
Accordingly, we conducted dose-response analyses for a) lung cancer (ICD-9 162); b) upper aerodigestive tract cancers encompassing the naso-oropharyngeal regions, esophagus, and stomach (ICD-9 140-151); c) hemato- and lymphopoietic cancers (ICD-9 200-208, excluding chronic lymphatic leukemias); d) urinary-tract cancers (ICD-9 188-189); and e) prostate cancer (ICD-9 185).
The aerodigestive tract is the upper digestive tract including the oro-, naso-, and hypopharynx, as well as the larynx.
The program will deal with the relationship between air pollution and diseases of the upper aerodigestive tract (nose, throat, sinuses, larynx, and lungs).